Abstract: Provided is an integrated device for preparing magnesium hydride powder and a method for preparing magnesium hydride powder. The device comprises a heating chamber for heating a magnesium-based metal material to produce metal droplets; a powder-making chamber comprising an atomizing means used for atomizing the metal droplets which are then cooled to form a metal powder; and a reaction chamber used for performing a hydrogenation reaction on the metal powder to form the magnesium hydride powder. The device is an integrated structure monolithic with a simple structure and a convenient operation; and the entire process of preparing magnesium hydride powder can be completed in this single device and can realize automated control. The preparation method is simple and easy to operate and produces a product that has a moderate size, uniform particles, and excellent performance.

Abstract: An MA-M2T spinel solid solution-reinforced magnesium oxide-based ceramic foam filter and a preparation therefor. The preparation method comprising: 1) preparing a ceramic slurry having a solid content of 60%-70% by dosing 15%-25% by mass of a nanometer alumina sol, 0.8%-1.5% by mass of a rheological agent, and the balance magnesium oxide ceramic powder comprising a nanometer titanium oxide sintering aid, and then adding deionized water and ball milling to mix until uniform, and then vacuum degassing the mixture; 2) soaking a polyurethane foam plastic template into the ceramic slurry, squeezing by a roller press the polyurethane foam plastic template to remove redundant slurry therein to make a biscuit, and drying the biscuit by heating it to 80° C.-120° C.; 3) putting the dried biscuit into a sintering furnace, elevating the temperature to 1400° C.-1600° C. and performing a high temperature sintering, cooling to the room temperature with the furnace to obtain the magnesium oxide-based ceramic foam filter.

Abstract: The-use of magnesium hydride in the preparation of a composition for preventing and treating chronic periodontitis, and a magnesium hydride toothpaste are provided. In the composition or the magnesium hydride toothpaste, magnesium hydride has a weight percentage of 1% to 3%. The toothpaste has the functions of disinfection, anti-inflammation, anti-oxidation, removing tooth stains, improving bad breath, alleviating gingival swelling, bleeding, and recession, and improving periodontitis symptoms. An appropriate amount of magnesium hydride fine particles is added in toothpaste, and the magnesium hydride particles can be hydrolyzed into hydrogen and magnesium ions with anti-inflammatory effects, which can also inhibit alveolar bone resorption. The magnesium hydride-containing composition is safe in use, and can effectively prevent the occurrence and development of periodontal diseases after long-term use.

Abstract: Provided is an integrated device for preparing magnesium hydride powder and a method for preparing magnesium hydride powder. The device comprises a heating chamber for heating a magnesium-based metal material to produce metal droplets; a powder-making chamber comprising an atomizing means used for atomizing the metal droplets which are then cooled to form a metal powder; and a reaction chamber used for performing a hydrogenation reaction on the metal powder to form the magnesium hydride powder. The device is an integrated structure monolithic with a simple structure and a convenient operation; and the entire process of preparing magnesium hydride powder can be completed in this single device and can realize automated control. The preparation method is simple and easy to operate and produces a product that has a moderate size, uniform particles, and excellent performance.

Abstract: An MA-M2T spinel solid solution-reinforced magnesium oxide-based ceramic foam filter and a preparation therefor. The preparation method comprising: 1) preparing a ceramic slurry having a solid content of 60%-70% by dosing 15%-25% by mass of a nanometer alumina sol, 0.8%-1.5% by mass of a rheological agent, and the balance magnesium oxide ceramic powder comprising a nanometer titanium oxide sintering aid, and then adding deionized water and ball milling to mix until uniform, and then vacuum degassing the mixture; 2) soaking a polyurethane foam plastic template into the ceramic slurry, squeezing by a roller press the polyurethane foam plastic template to remove redundant slurry therein to make a biscuit, and drying the biscuit by heating it to 80° C.-120° C.; 3) putting the dried biscuit into a sintering furnace, elevating the temperature to 1400° C.-1600° C. and performing a high temperature sintering, cooling to the room temperature with the furnace to obtain the magnesium oxide-based ceramic foam filter.

Abstract: A biodegradable magnesium alloy nerve conduit for nerve defect repair has multiple lines of through holes in the tube wall thereof, the through holes in each line are axially arranged along a circular tube at equal distances, and the through holes in adjacent lines are arranged in a staggered way. A method for preparing the nerve conduit includes steps of: (step 1) processing a 45-degree conical surface at one end of a magnesium alloy tube blank, carrying out extrusion, and obtaining a magnesium alloy intermediate tube material; (step 2) obtaining a capillary tube after carrying out multi-pass rolling and drawing on the magnesium alloy intermediate tube material; (step 3) carrying out stress relief annealing on the capillary tube, laser cutting and punching, and obtaining a porous conduit; and (step 4) carrying out acid pickling on the porous conduit, and then carrying out electrochemical polishing treatment, and obtaining the nerve conduit.

Abstract: The invention provides a friction-welded structure assembly, comprising a first workpiece (10B), a second workpiece (10C) and a friction welding connecting part (10A). The lower side of the friction welding connecting part (10A) has a first friction welding junction interface (10H) which is in contact with a surface of the first workpiece (10B) and a second friction welding junction interface (11H) which is in contact with a surface of the second workpiece (10C).

Abstract: A biodegradable magnesium alloy nerve conduit for nerve defect repair has multiple lines of through holes in the tube wall thereof, the through holes in each line are axially arranged along a circular tube at equal distances, and the through holes in adjacent lines are arranged in a staggered way. A method for preparing the nerve conduit includes steps of: (step 1) processing a 45-degree conical surface at one end of a magnesium alloy tube blank, carrying out extrusion, and obtaining a magnesium alloy intermediate tube material; (step 2) obtaining a capillary tube after carrying out multi-pass rolling and drawing on the magnesium alloy intermediate tube material; (step 3) carrying out stress relief annealing on the capillary tube, laser cutting and punching, and obtaining a porous conduit; and (step 4) carrying out acid pickling on the porous conduit, and then carrying out electrochemical polishing treatment, and obtaining the nerve conduit.

Abstract: A health-care preparation simultaneously with magnesium supplement and antioxidant functions and a preparation method thereof are disclosed. The health-care preparation comprises a main active ingredient of magnesium agent and an excipient. The magnesium agent is MgH2 micro-nano powder, and the excipient is a commonly used dietary supplement auxiliary material. Compared with the existing magnesium-supplementing preparation, the health-care preparation can simultaneously supplement magnesium which is the essential trace element in human body, and hydrogen which can neutralize oxygen free radicals. The present invention has the following advantages: it is convenient for storage and taking, and has a high conversion and absorption efficiency, a low cost, and no toxic side effects.

Abstract: The invention provides a friction-welded structure assembly, comprising a first workpiece (10B), a second workpiece (10C) and a friction welding connecting part (10A). The lower side of the friction welding connecting part (10A) has a first friction welding junction interface (10H) which is in contact with a surface of the first workpiece (10B) and a second friction welding junction interface (11H) which is in contact with a surface of the second workpiece (10C).

Abstract: The grain size of magnesium alloys is effectively refined and made smaller by the addition of a small amount of titanium. The effect of the reduction of grain size is often an improvement in the strength and processability of a cast magnesium alloy. Often less than about 0.1% by weight of titanium need be used. It may be preferred to incorporate the titanium with another alloying constituent (such as aluminum) for addition to a melt of a magnesium base alloy.

Abstract: The grain size of magnesium alloys is effectively refined and made smaller by the addition of a small amount of titanium. The effect of the reduction of grain size is often an improvement in the strength and processability of a cast magnesium alloy. Often less than about 0.1% by weight of titanium need be used. It may be preferred to incorporate the titanium with another alloying constituent (such as aluminum) for addition to a melt of a magnesium base alloy.